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Now showing items 1-10 of 36
Experimental and theoretical investigations of a new integrated solar tower system for photocatalytic hydrogen and power production
(8/1/2013)
Solar energy conversion via photocatalytic hydrogen production from water is an attractive route for the propagation of a hydrogen economy. Increasing the efficiency of such systems to meet the target of 10% is essential ...
Development of novel energy systems for LNG locomotives
(4/1/2015)
The use of diesel in the railway sector brings challenges to the engineers to meet the current emissions standards set by governments. This thesis addresses potential solutions to overcome the emissions problems in the ...
Thermochemical energy storage systems: modelling, analysis and design
(7/1/2010)
Thermal energy storage (TES) is an advanced technology for storing thermal energy
that can mitigate environmental impacts and facilitate more efficient and clean energy
systems. Thermochemical TES is an emerging method ...
Thermodynamic performance assessment of three biomass-based hydrogen production systems
(4/1/2010)
Hydrogen is likely to be an important energy carrier in the future. It can be produced by the steam reforming of natural gas, coal gasification and water electrolysis among other processes. However current processes are ...
Performance investigation of various cold thermal energy storages
(7/1/2008)
This study deals with solidification and melting of some typical encapsulated ice thermal energy storage geometries. Using ANSYS GAMBIT and FLUENT 6.0 software, HTF fluid motion past encapsulated water (ice) geometries, ...
Development and assessment of renewable energy based integrated systems for dimethyl ether production
(2018-12-01)
Dimethyl-ether (DME) is considered to be one of the most promising, renewable alternative fuels. This thesis studies, develops, analyzes and assesses the performance of three dimethyl-ether production integrated systems, ...
Investigation of mechanical heat pump systems for heat upgrading applications
(4/1/2016)
Three high temperature heat pump systems based on vapor compression cycles are introduced and examined. Four fluids (water, cyclohexane, biphenyl and mercury) are selected and analysed thermodynamically as prospective ...
Experimental investigation of scroll based organic Rankine systems
(4/1/2011)
In this thesis, an experimental research is conducted on scroll-based Organic Rankine Cycle (ORC) focusing on the expansion process. An important feature of the ORC is the ability to utilize low or moderate temperature ...
Energy ans exergy analysis of biomass co-firing in pulverized coal power generation
(4/1/2011)
Biomass co-firing with coal exhibits great potential for large scale utilization of biomass
energy in the near future. In the present work, energy and exergy analyses are carried out
for a co-firing based power generation ...
Energy, exergy and cost analyses of nuclear-based hydrogen production via thermochemical water decomposition using a copper-chlorine (Cu-CI) cycle
(4/1/2008)
In this thesis the Copper-Chlorine (Cu-CI) thermochemical cycle and its components as well as operational and environmental conditions are defined, and a comprehensive thermodynamic analysis of a Cu-CI thermochemical cycle, ...